What PowerBook models do you have to put the unit to sleep or shut down in order to exchange their Expansion Bay Modules?

So for example, with a Floppy Expansion Module you would need to quit all applications and close all files that are located on the floppy disk. Then eject the floppy disk and then proceed with removing the Floppy Expansion Module after the media bay in-use light goes off.

PowerBook 5300 series and 190 series

Apple suggests that the computer be turned off before removing the Expansion Bay Modules, although no damage should occur if the computer is asleep and the module follows Apple specification guidelines.

PowerBook 1400 series
Modules can be switched or removed while the PowerBook is turned off or in sleep mode.

Note: The PowerBook 1400 Expansion Bay Modules are not interchangeable with other PowerBook computers.

PowerBook 3400 series
Modules can be switched or removed while the PowerBook is turned on, in sleep, or shut down. Do not switch modules while the computer is starting up, this could cause lost of data and may have unexpected results.

PowerBook G3

Modules can be switched or removed while the PowerBook is turned on, in sleep, or shut down. Do not switch modules while the computer is starting up; this could cause lost of data and may have unexpected results.

PowerBook G3 Series

Storage devices for the expansion bays are hot-swappable. There is no need to turn the system off or put it into sleep mode to exchange storage devices such as CD-ROM, DVD-ROM, Zip, or floppy disk drives. However, you must unmount any media from the storage device before commencing a hot swap.

PowerBook G3 Series (Bronze keyboard)

Storage devices for the expansion bays are hot-swappable. There is no need to turn the system off or put it into sleep mode to exchange storage devices such as CD-ROM, DVD-ROM, Zip, or floppy disk drives. However, you must unmount any media from the storage device before commencing a hot swap.

PowerBook G3 Series Media Bay devices are not compatible with the PowerBook G3 Series (Bronze keyboard) as the Media Bay has a different height specification.

Non-Apple Expansion Modules

For third-party, non-Apple branded, Expansion Modules check with the vendor of the module to see if any special precautions should be followed.

Note: Macintosh PowerBook G3 Series computers should not be confused with Macintosh PowerBook G3 computers. Though the names are similar, there are significant differences. For more information differentiating between the computers, read Tech Info Library article 24604: " PowerBook G3, G3 Series: Identifying Different Versions "